ASTROSAT CZTI

Data Quality Report

Orbit 20240524_C07_001T10_9000006272_level2

Creation date: 2024-05-27T08:58:46.246826
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C07_001T10_9000006272cztM0_level2.fits modeM0/AS1C07_001T10_9000006272cztM0_level2_quad_clean.evt
Size (bytes)944,827,2001,183,311,360
Size901.1 MB 1.1 GB
Events in quadrant A5,435,6827,226,614
Events in quadrant B5,336,8227,304,477
Events in quadrant C5,661,7747,407,104
Events in quadrant D4,685,4886,412,724

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022140
B022140
C022140
D022140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01090
B01090
C01090
D01090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03798460
B02721880
C02262520
D03086100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10927538283.503089%
B10927537913.469229%
C1092757960.728437%
D10927560275.515443%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 120169 109271 0 0 0.00% 0.00%
B 120170 109267 0 0 0.00% 0.00%
C 120170 109268 0 0 0.00% 0.00%
D 120170 109196 0 0 0.00% 0.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 7 110 4440 8.48 1420 1328 366.9
A 0 29 4272 8.02 1420 1328 366.9
A 14 95 4112 7.59 1420 1328 366.9
B 2 9 5077 13.77 1410 1347 270.8
B 2 8 4157 10.38 1410 1347 270.8
B 3 17 3790 9.02 1410 1347 270.8
C 1 81 4428 7.74 1497 1391 392.3
C 3 202 4421 7.72 1497 1391 392.3
C 1 80 4374 7.6 1497 1391 392.3
D 10 189 3478 6.05 1345 1221 373.2
D 15 47 3470 6.02 1345 1221 373.2
D 6 38 3423 5.9 1345 1221 373.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter